- Sun Storage Virtual Tape Library VTL User Guide

Key VTL features and options

8 VTL User Guide • May 2008 G • 96267

KeyVTLfeaturesandoptions

■ “NDMPmigration”onpage 8

■ “VTLhigh‐a vailabilityoption”onpage 9

■ “A u t o m a t e d TapeCaching”onpage 12

■ “Virtualtapereplication”onpage 12

■ “VTLSecureTapeencryptionoption”onpage 14.

NDMPmigration

BackupapplicationsthatsupportNetworkDataManagementProtocol(NDMP)4.0

with Sun VTL virtuallibrariescanmountvirtualtapesonasuitab lyconfigured

VTLPlus2.0server,copythemtophysicalmedia,andtrackcopiesusingbackup

applicationmanagementdatabases.Th ebackupapplicationbacksupdataacrossthe

SAN,creating thecriticalfirst

copyon VTLvirtualtape(A below).Thebackup

applicationthenmountsthevirtualtapestoanNDMPagenthostedonthe VT L

server(

B)andcopiesthem overtheSANtophysi c al media(C)bysending NDMP

commandandcontrolinformat ion acros stheEthernetLAN(

D).

Totakeadvantageofthisfunctionality, youmustenabletheVTLPlus2.0Hosted

BackupandNDMPoptions.

NotethattheSunVTLPlusHostedBackupandNDMPoptionsarenotrequired

whenbackingup aNetworkAttachedStorage(NAS) filertoaVTL applaince.Inthis

instance,theNAS

filerissimplyabackupclient.Thebackupapplicationserver

physical

tape

library

VTL appliance

backup

application

server

NDMP 4.0

SAN fabric

Ethernet LAN

virtual tape library

hosted NDMP agent